Pamelyn Wanda Ferdin (born February 4, 1959) is an American former child actress and animal rights activist.
Ferdin's acting career mostly spanned the 1960s, 1970s, and 1980s, though she has appeared in projects sporadically in recent years. Ferdin began her career in numerous television series, and gained notoriety for her work as a voice actress supplying the voice of Lucy Van Pelt in A Boy Named Charlie Brown (1969), as well as in two other Peanuts television specials.
She later had supporting roles in The Beguiled (1971) with Clint Eastwood and Geraldine Page, and a lead role in the exploitation film The Toolbox Murders (1978) with Cameron Mitchell. She also supplied the voice of Fern Arable in Charlotte's Web (1973). Ferdin distanced herself from acting in the late 1980s, and shifted her career to animal rights activism, working as an activist and protester in animal protection programs in New York City and Los Angeles.